Running Storage Foundation (SFW) in the Microsoft Hyper-V parent partition offers benefits for virtual machines (VMs) that would otherwise be unavailable at the guest level.
SFW also offers advanced features and functionality, such as multi-pathing, replication, and snapshots, as product options. More information is available on how to use the following features and on the benefits they provide when running SFW in the Hyper-V parent:
Using Dynamic Multi-Pathing (DMP) to provide failover and load-balancing to the LUNs that host the VMs in the child partition (DMP Device Specific Modules (DSMs) option)
Replicating VMs between sites (Volume Replicator option)
Maintaining Quick Recovery snapshots of the VMs (FlashSnap option)
In addition, running SFW in the parent partition facilitates implementing campus clusters (stretched clusters) in the Hyper-V environment.
See Campus clusters.